If you want a simple build:
1: Naisha’s memento is easy to use and does its job, especially against clumped enemies such as triple melee or tight team fight spots.
4: Pin down or blade dance, if you don’t think you can get pin down value blade dance is free extra damage.
7: Elune’s wrath is very good.
10: Wardens cage for combos/self synergy, especially if you are on a team fight heavy map, containment disk is good for removing key targets from fights for a bit, kinda like a 1 man void prison, it also does anything void prison does but with a target limit.
13: bladed armor, synergizes extremely well with armored assault at 16.
16: armored assault, with bladed armor you basically have a 100% up time 20% damage buff
20: shadow orb huntress, by far the best level 20 for any build, 40% move speed is instant better-then-mount speed and the attack speed boost synergizes with Naisha’s memento.
If you want the true Maeiv experience (a lot harder)
1: Bonds of Justice really strong synergy with cruel chain at 16, make sure to stack up at least 10 stacks asap, remember you can attack minions to secondary hit nearby heroes for stacks.
4: blade dance: procs cruel chain’s damage stacks, better then it is in the other build. against clumped or several melee teams i sometimes take pin down still.
7: Elune’s wrath, already a great talent but it also procs Elune’s wrath
10: same as before, either goes, warden is more often then not a good choice.
13: bladed armor is still very good even without armored assault.
16: cruel chain. Gives you high 1v1 potential, insane team fight winning burst potential. Insane talent that literally defines Maeiv’s play style. IF you can pull it off, this build takes some getting used to.
20: shadow orb huntress is still insane here, move speed is op and Naisha’s memento is not required for the aa speed part of it as Maeiv already deals very high aa damage